/**
 * @license Highcharts JS v7.1.2 (2019-06-03)
 *
 * Client side exporting module
 *
 * (c) 2015-2019 Torstein Honsi / Oystein Moseng
 *
 * License: www.highcharts.com/license
 */
'use strict';
(function (factory) {
    if (typeof module === 'object' && module.exports) {
        factory['default'] = factory;
        module.exports = factory;
    } else if (typeof define === 'function' && define.amd) {
        define('highcharts/modules/offline-exporting', ['highcharts', 'highcharts/modules/exporting'], function (Highcharts) {
            factory(Highcharts);
            factory.Highcharts = Highcharts;
            return factory;
        });
    } else {
        factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
    }
}(function (Highcharts) {
    var _modules = Highcharts ? Highcharts._modules : {};
    function _registerModule(obj, path, args, fn) {
        if (!obj.hasOwnProperty(path)) {
            obj[path] = fn.apply(null, args);
        }
    }
    _registerModule(_modules, 'mixins/download-url.js', [_modules['parts/Globals.js']], function (Highcharts) {
        /* *
         * Mixin for downloading content in the browser
         *
         * (c) 2015-2019 Oystein Moseng
         *
         * License: www.highcharts.com/license
         */



        var win = Highcharts.win,
            nav = win.navigator,
            doc = win.document,
            domurl = win.URL || win.webkitURL || win,
            isEdgeBrowser = /Edge\/\d+/.test(nav.userAgent);

        // Convert base64 dataURL to Blob if supported, otherwise returns undefined
        Highcharts.dataURLtoBlob = function (dataURL) {
            var parts = dataURL.match(/data:([^;]*)(;base64)?,([0-9A-Za-z+/]+)/);

            if (
                parts &&
                parts.length > 3 &&
                win.atob &&
                win.ArrayBuffer &&
                win.Uint8Array &&
                win.Blob &&
                domurl.createObjectURL
            ) {
                // Try to convert data URL to Blob
                var binStr = win.atob(parts[3]),
                    buf = new win.ArrayBuffer(binStr.length),
                    binary = new win.Uint8Array(buf),
                    blob;

                for (var i = 0; i < binary.length; ++i) {
                    binary[i] = binStr.charCodeAt(i);
                }

                blob = new win.Blob([binary], { 'type': parts[1] });
                return domurl.createObjectURL(blob);
            }
        };


        /**
         * Download a data URL in the browser. Can also take a blob as first param.
         *
         * @private
         * @function Highcharts.downloadURL
         *
         * @param {string|object} dataURL
         *        The dataURL/Blob to download
         *
         * @param {string} filename
         *        The name of the resulting file (w/extension)
         */
        Highcharts.downloadURL = function (dataURL, filename) {
            var a = doc.createElement('a'),
                windowRef;

            // IE specific blob implementation
            // Don't use for normal dataURLs
            if (
                typeof dataURL !== 'string' &&
                !(dataURL instanceof String) &&
                nav.msSaveOrOpenBlob
            ) {
                nav.msSaveOrOpenBlob(dataURL, filename);
                return;
            }

            // Some browsers have limitations for data URL lengths. Try to convert to
            // Blob or fall back. Edge always needs that blob.
            if (isEdgeBrowser || dataURL.length > 2000000) {
                dataURL = Highcharts.dataURLtoBlob(dataURL);
                if (!dataURL) {
                    throw new Error('Failed to convert to blob');
                }
            }

            // Try HTML5 download attr if supported
            if (a.download !== undefined) {
                a.href = dataURL;
                a.download = filename; // HTML5 download attribute
                doc.body.appendChild(a);
                a.click();
                doc.body.removeChild(a);
            } else {
                // No download attr, just opening data URI
                try {
                    windowRef = win.open(dataURL, 'chart');
                    if (windowRef === undefined || windowRef === null) {
                        throw new Error('Failed to open window');
                    }
                } catch (e) {
                    // window.open failed, trying location.href
                    win.location.href = dataURL;
                }
            }
        };

    });
    _registerModule(_modules, 'modules/offline-exporting.src.js', [_modules['parts/Globals.js']], function (Highcharts) {
        /* *
         * Client side exporting module
         *
         * (c) 2015 Torstein Honsi / Oystein Moseng
         *
         * License: www.highcharts.com/license
         */


        /* global MSBlobBuilder */


        var addEvent = Highcharts.addEvent,
            merge = Highcharts.merge,
            win = Highcharts.win,
            nav = win.navigator,
            doc = win.document,
            domurl = win.URL || win.webkitURL || win,
            isMSBrowser = /Edge\/|Trident\/|MSIE /.test(nav.userAgent),
            // Milliseconds to defer image load event handlers to offset IE bug
            loadEventDeferDelay = isMSBrowser ? 150 : 0;

        // Dummy object so we can reuse our canvas-tools.js without errors
        Highcharts.CanVGRenderer = {};


        /**
         * Downloads a script and executes a callback when done.
         *
         * @private
         * @function getScript
         *
         * @param {string} scriptLocation
         *
         * @param {Function} callback
         */
        function getScript(scriptLocation, callback) {
            var head = doc.getElementsByTagName('head')[0],
                script = doc.createElement('script');

            script.type = 'text/javascript';
            script.src = scriptLocation;
            script.onload = callback;
            script.onerror = function () {
                Highcharts.error('Error loading script ' + scriptLocation);
            };

            head.appendChild(script);
        }

        /**
         * Get blob URL from SVG code. Falls back to normal data URI.
         *
         * @private
         * @function Highcharts.svgToDataURL
         *
         * @param {string} svg
         *
         * @return {string}
         */
        Highcharts.svgToDataUrl = function (svg) {
            // Webkit and not chrome
            var webKit = (
                nav.userAgent.indexOf('WebKit') > -1 &&
                nav.userAgent.indexOf('Chrome') < 0
            );

            try {
                // Safari requires data URI since it doesn't allow navigation to blob
                // URLs. Firefox has an issue with Blobs and internal references,
                // leading to gradients not working using Blobs (#4550)
                if (!webKit && nav.userAgent.toLowerCase().indexOf('firefox') < 0) {
                    return domurl.createObjectURL(new win.Blob([svg], {
                        type: 'image/svg+xml;charset-utf-16'
                    }));
                }
            } catch (e) {
                // Ignore
            }
            return 'data:image/svg+xml;charset=UTF-8,' + encodeURIComponent(svg);
        };

        /**
         * Get data:URL from image URL. Pass in callbacks to handle results.
         *
         * @private
         * @function Highcharts.imageToDataUrl
         *
         * @param {string} imageURL
         *
         * @param {string} imageType
         *
         * @param {*} callbackArgs
         *        callbackArgs is used only by callbacks.
         *
         * @param {number} scale
         *
         * @param {Function} successCallback
         *        Receives four arguments: imageURL, imageType, callbackArgs, and scale.
         *
         * @param {Function} taintedCallback
         *        Receives four arguments: imageURL, imageType, callbackArgs, and scale.
         *
         * @param {Function} noCanvasSupportCallback
         *        Receives four arguments: imageURL, imageType, callbackArgs, and scale.
         *
         * @param {Function} failedLoadCallback
         *        Receives four arguments: imageURL, imageType, callbackArgs, and scale.
         *
         * @param {Function} [finallyCallback]
         *        finallyCallback is always called at the end of the process. All
         *        callbacks receive four arguments: imageURL, imageType, callbackArgs,
         *        and scale.
         */
        Highcharts.imageToDataUrl = function (
            imageURL,
            imageType,
            callbackArgs,
            scale,
            successCallback,
            taintedCallback,
            noCanvasSupportCallback,
            failedLoadCallback,
            finallyCallback
        ) {
            var img = new win.Image(),
                taintedHandler,
                loadHandler = function () {
                    setTimeout(function () {
                        var canvas = doc.createElement('canvas'),
                            ctx = canvas.getContext && canvas.getContext('2d'),
                            dataURL;

                        try {
                            if (!ctx) {
                                noCanvasSupportCallback(
                                    imageURL,
                                    imageType,
                                    callbackArgs,
                                    scale
                                );
                            } else {
                                canvas.height = img.height * scale;
                                canvas.width = img.width * scale;
                                ctx.drawImage(img, 0, 0, canvas.width, canvas.height);

                                // Now we try to get the contents of the canvas.
                                try {
                                    dataURL = canvas.toDataURL(imageType);
                                    successCallback(
                                        dataURL,
                                        imageType,
                                        callbackArgs,
                                        scale
                                    );
                                } catch (e) {
                                    taintedHandler(
                                        imageURL,
                                        imageType,
                                        callbackArgs,
                                        scale
                                    );
                                }
                            }
                        } finally {
                            if (finallyCallback) {
                                finallyCallback(
                                    imageURL,
                                    imageType,
                                    callbackArgs,
                                    scale
                                );
                            }
                        }
                    // IE bug where image is not always ready despite calling load
                    // event.
                    }, loadEventDeferDelay);
                },
                // Image load failed (e.g. invalid URL)
                errorHandler = function () {
                    failedLoadCallback(imageURL, imageType, callbackArgs, scale);
                    if (finallyCallback) {
                        finallyCallback(imageURL, imageType, callbackArgs, scale);
                    }
                };

            // This is called on load if the image drawing to canvas failed with a
            // security error. We retry the drawing with crossOrigin set to Anonymous.
            taintedHandler = function () {
                img = new win.Image();
                taintedHandler = taintedCallback;
                // Must be set prior to loading image source
                img.crossOrigin = 'Anonymous';
                img.onload = loadHandler;
                img.onerror = errorHandler;
                img.src = imageURL;
            };

            img.onload = loadHandler;
            img.onerror = errorHandler;
            img.src = imageURL;
        };

        /**
         * Get data URL to an image of an SVG and call download on it options object:
         *
         * - **filename:** Name of resulting downloaded file without extension. Default
         *   is `chart`.
         *
         * - **type:** File type of resulting download. Default is `image/png`.
         *
         * - **scale:** Scaling factor of downloaded image compared to source. Default
         *   is `1`.
         *
         * - **libURL:** URL pointing to location of dependency scripts to download on
         *   demand. Default is the exporting.libURL option of the global Highcharts
         *   options pointing to our server.
         *
         * @function Highcharts.downloadSVGLocal
         *
         * @param {string} svg
         *
         * @param {Highcharts.ExportingOptions} options
         *
         * @param {Function} failCallback
         *
         * @param {Function} successCallback
         */
        Highcharts.downloadSVGLocal = function (
            svg,
            options,
            failCallback,
            successCallback
        ) {
            var svgurl,
                blob,
                objectURLRevoke = true,
                finallyHandler,
                libURL = options.libURL || Highcharts.getOptions().exporting.libURL,
                dummySVGContainer = doc.createElement('div'),
                imageType = options.type || 'image/png',
                filename = (
                    (options.filename || 'chart') +
                    '.' +
                    (imageType === 'image/svg+xml' ? 'svg' : imageType.split('/')[1])
                ),
                scale = options.scale || 1;

            // Allow libURL to end with or without fordward slash
            libURL = libURL.slice(-1) !== '/' ? libURL + '/' : libURL;

            function svgToPdf(svgElement, margin) {
                var width = svgElement.width.baseVal.value + 2 * margin,
                    height = svgElement.height.baseVal.value + 2 * margin,
                    pdf = new win.jsPDF( // eslint-disable-line new-cap
                        'l',
                        'pt',
                        [width, height]
                    );

                // Workaround for #7090, hidden elements were drawn anyway. It comes
                // down to https://github.com/yWorks/svg2pdf.js/issues/28. Check this
                // later.
                [].forEach.call(
                    svgElement.querySelectorAll('*[visibility="hidden"]'),
                    function (node) {
                        node.parentNode.removeChild(node);
                    }
                );

                win.svg2pdf(svgElement, pdf, { removeInvalid: true });
                return pdf.output('datauristring');
            }

            function downloadPDF() {
                dummySVGContainer.innerHTML = svg;
                var textElements = dummySVGContainer.getElementsByTagName('text'),
                    titleElements,
                    svgData,
                    // Copy style property to element from parents if it's not there.
                    // Searches up hierarchy until it finds prop, or hits the chart
                    // container.
                    setStylePropertyFromParents = function (el, propName) {
                        var curParent = el;

                        while (curParent && curParent !== dummySVGContainer) {
                            if (curParent.style[propName]) {
                                el.style[propName] = curParent.style[propName];
                                break;
                            }
                            curParent = curParent.parentNode;
                        }
                    };

                // Workaround for the text styling. Making sure it does pick up settings
                // for parent elements.
                [].forEach.call(textElements, function (el) {
                    // Workaround for the text styling. making sure it does pick up the
                    // root element
                    ['font-family', 'font-size'].forEach(function (property) {
                        setStylePropertyFromParents(el, property);
                    });
                    el.style['font-family'] = (
                        el.style['font-family'] &&
                        el.style['font-family'].split(' ').splice(-1)
                    );

                    // Workaround for plotband with width, removing title from text
                    // nodes
                    titleElements = el.getElementsByTagName('title');
                    [].forEach.call(titleElements, function (titleElement) {
                        el.removeChild(titleElement);
                    });
                });
                svgData = svgToPdf(dummySVGContainer.firstChild, 0);
                try {
                    Highcharts.downloadURL(svgData, filename);
                    if (successCallback) {
                        successCallback();
                    }
                } catch (e) {
                    failCallback(e);
                }
            }

            // Initiate download depending on file type
            if (imageType === 'image/svg+xml') {
                // SVG download. In this case, we want to use Microsoft specific Blob if
                // available
                try {
                    if (nav.msSaveOrOpenBlob) {
                        blob = new MSBlobBuilder();
                        blob.append(svg);
                        svgurl = blob.getBlob('image/svg+xml');
                    } else {
                        svgurl = Highcharts.svgToDataUrl(svg);
                    }
                    Highcharts.downloadURL(svgurl, filename);
                    if (successCallback) {
                        successCallback();
                    }
                } catch (e) {
                    failCallback(e);
                }
            } else if (imageType === 'application/pdf') {
                if (win.jsPDF && win.svg2pdf) {
                    downloadPDF();
                } else {
                    // Must load pdf libraries first. // Don't destroy the object URL
                    // yet since we are doing things asynchronously. A cleaner solution
                    // would be nice, but this will do for now.
                    objectURLRevoke = true;
                    getScript(libURL + 'jspdf.js', function () {
                        getScript(libURL + 'svg2pdf.js', function () {
                            downloadPDF();
                        });
                    });
                }
            } else {
                // PNG/JPEG download - create bitmap from SVG

                svgurl = Highcharts.svgToDataUrl(svg);
                finallyHandler = function () {
                    try {
                        domurl.revokeObjectURL(svgurl);
                    } catch (e) {
                        // Ignore
                    }
                };
                // First, try to get PNG by rendering on canvas
                Highcharts.imageToDataUrl(
                    svgurl,
                    imageType,
                    {},
                    scale,
                    function (imageURL) {
                        // Success
                        try {
                            Highcharts.downloadURL(imageURL, filename);
                            if (successCallback) {
                                successCallback();
                            }
                        } catch (e) {
                            failCallback(e);
                        }
                    }, function () {
                        // Failed due to tainted canvas
                        // Create new and untainted canvas
                        var canvas = doc.createElement('canvas'),
                            ctx = canvas.getContext('2d'),
                            imageWidth = svg.match(
                                /^<svg[^>]*width\s*=\s*\"?(\d+)\"?[^>]*>/
                            )[1] * scale,
                            imageHeight = svg.match(
                                /^<svg[^>]*height\s*=\s*\"?(\d+)\"?[^>]*>/
                            )[1] * scale,
                            downloadWithCanVG = function () {
                                ctx.drawSvg(svg, 0, 0, imageWidth, imageHeight);
                                try {
                                    Highcharts.downloadURL(
                                        nav.msSaveOrOpenBlob ?
                                            canvas.msToBlob() :
                                            canvas.toDataURL(imageType),
                                        filename
                                    );
                                    if (successCallback) {
                                        successCallback();
                                    }
                                } catch (e) {
                                    failCallback(e);
                                } finally {
                                    finallyHandler();
                                }
                            };

                        canvas.width = imageWidth;
                        canvas.height = imageHeight;
                        if (win.canvg) {
                            // Use preloaded canvg
                            downloadWithCanVG();
                        } else {
                            // Must load canVG first. // Don't destroy the object URL
                            // yet since we are doing things asynchronously. A cleaner
                            // solution would be nice, but this will do for now.
                            objectURLRevoke = true;
                            // Get RGBColor.js first, then canvg
                            getScript(libURL + 'rgbcolor.js', function () {
                                getScript(libURL + 'canvg.js', function () {
                                    downloadWithCanVG();
                                });
                            });
                        }
                    },
                    // No canvas support
                    failCallback,
                    // Failed to load image
                    failCallback,
                    // Finally
                    function () {
                        if (objectURLRevoke) {
                            finallyHandler();
                        }
                    }
                );
            }
        };

        /**
         * Get SVG of chart prepared for client side export. This converts embedded
         * images in the SVG to data URIs. It requires the regular exporting module. The
         * options and chartOptions arguments are passed to the getSVGForExport
         * function.
         *
         * @private
         * @function Highcharts.Chart#getSVGForLocalExport
         *
         * @param {Highcharts.ExportingOptions} options
         *
         * @param {Highcharts.Options} chartOptions
         *
         * @param {Function} failCallback
         *
         * @param {Function} successCallback
         */
        Highcharts.Chart.prototype.getSVGForLocalExport = function (
            options,
            chartOptions,
            failCallback,
            successCallback
        ) {
            var chart = this,
                images,
                imagesEmbedded = 0,
                chartCopyContainer,
                chartCopyOptions,
                el,
                i,
                l,
                href,
                // After grabbing the SVG of the chart's copy container we need to do
                // sanitation on the SVG
                sanitize = function (svg) {
                    return chart.sanitizeSVG(svg, chartCopyOptions);
                },
                // When done with last image we have our SVG
                checkDone = function () {
                    if (imagesEmbedded === images.length) {
                        successCallback(sanitize(chartCopyContainer.innerHTML));
                    }
                },
                // Success handler, we converted image to base64!
                embeddedSuccess = function (imageURL, imageType, callbackArgs) {
                    ++imagesEmbedded;

                    // Change image href in chart copy
                    callbackArgs.imageElement.setAttributeNS(
                        'http://www.w3.org/1999/xlink',
                        'href',
                        imageURL
                    );

                    checkDone();
                };

            // Hook into getSVG to get a copy of the chart copy's container (#8273)
            chart.unbindGetSVG = addEvent(chart, 'getSVG', function (e) {
                chartCopyOptions = e.chartCopy.options;
                chartCopyContainer = e.chartCopy.container.cloneNode(true);
            });

            // Trigger hook to get chart copy
            chart.getSVGForExport(options, chartOptions);
            images = chartCopyContainer.getElementsByTagName('image');

            try {
                // If there are no images to embed, the SVG is okay now.
                if (!images.length) {
                    // Use SVG of chart copy
                    successCallback(sanitize(chartCopyContainer.innerHTML));
                    return;
                }

                // Go through the images we want to embed
                for (i = 0, l = images.length; i < l; ++i) {
                    el = images[i];
                    href = el.getAttributeNS(
                        'http://www.w3.org/1999/xlink',
                        'href'
                    );
                    if (href) {
                        Highcharts.imageToDataUrl(
                            href,
                            'image/png',
                            { imageElement: el },
                            options.scale,
                            embeddedSuccess,
                            // Tainted canvas
                            failCallback,
                            // No canvas support
                            failCallback,
                            // Failed to load source
                            failCallback
                        );

                    // Hidden, boosted series have blank href (#10243)
                    } else {
                        ++imagesEmbedded;
                        el.parentNode.removeChild(el);
                        checkDone();
                    }
                }
            } catch (e) {
                failCallback(e);
            }

            // Clean up
            chart.unbindGetSVG();
        };

        /**
         * Exporting and offline-exporting modules required. Export a chart to an image
         * locally in the user's browser. Requires the regular exporting module.
         *
         * @function Highcharts.Chart#exportChartLocal
         *
         * @param  {Highcharts.ExportingOptions} exportingOptions
         *         Exporting options, the same as in
         *         {@link Highcharts.Chart#exportChart}.
         *
         * @param  {Highcharts.Options} chartOptions
         *         Additional chart options for the exported chart. For example a
         *         different background color can be added here, or `dataLabels`
         *         for export only.
         */
        Highcharts.Chart.prototype.exportChartLocal = function (
            exportingOptions,
            chartOptions
        ) {
            var chart = this,
                options = Highcharts.merge(chart.options.exporting, exportingOptions),
                fallbackToExportServer = function (err) {
                    if (options.fallbackToExportServer === false) {
                        if (options.error) {
                            options.error(options, err);
                        } else {
                            Highcharts.error(28, true); // Fallback disabled
                        }
                    } else {
                        chart.exportChart(options);
                    }
                },
                svgSuccess = function (svg) {
                    // If SVG contains foreignObjects all exports except SVG will fail,
                    // as both CanVG and svg2pdf choke on this. Gracefully fall back.
                    if (
                        svg.indexOf('<foreignObject') > -1 &&
                        options.type !== 'image/svg+xml'
                    ) {
                        fallbackToExportServer(
                            'Image type not supported for charts with embedded HTML'
                        );
                    } else {
                        Highcharts.downloadSVGLocal(
                            svg,
                            Highcharts.extend(
                                { filename: chart.getFilename() },
                                options
                            ),
                            fallbackToExportServer
                        );
                    }
                },

                // Return true if the SVG contains images with external data. With the
                // boost module there are `image` elements with encoded PNGs, these are
                // supported by svg2pdf and should pass (#10243).
                hasExternalImages = function () {
                    return [].some.call(
                        chart.container.getElementsByTagName('image'),
                        function (image) {
                            var href = image.getAttribute('href');
                            return href !== '' && href.indexOf('data:') !== 0;
                        }
                    );
                };

            // If we are on IE and in styled mode, add a whitelist to the renderer for
            // inline styles that we want to pass through. There are so many styles by
            // default in IE that we don't want to blacklist them all.
            if (isMSBrowser && chart.styledMode) {
                Highcharts.SVGRenderer.prototype.inlineWhitelist = [
                    /^blockSize/,
                    /^border/,
                    /^caretColor/,
                    /^color/,
                    /^columnRule/,
                    /^columnRuleColor/,
                    /^cssFloat/,
                    /^cursor/,
                    /^fill$/,
                    /^fillOpacity/,
                    /^font/,
                    /^inlineSize/,
                    /^length/,
                    /^lineHeight/,
                    /^opacity/,
                    /^outline/,
                    /^parentRule/,
                    /^rx$/,
                    /^ry$/,
                    /^stroke/,
                    /^textAlign/,
                    /^textAnchor/,
                    /^textDecoration/,
                    /^transform/,
                    /^vectorEffect/,
                    /^visibility/,
                    /^x$/,
                    /^y$/
                ];
            }

            // Always fall back on:
            // - MS browsers: Embedded images JPEG/PNG, or any PDF
            // - Embedded images and PDF
            if (
                (
                    isMSBrowser &&
                    (
                        options.type === 'application/pdf' ||
                        chart.container.getElementsByTagName('image').length &&
                        options.type !== 'image/svg+xml'
                    )
                ) || (
                    options.type === 'application/pdf' &&
                    hasExternalImages()
                )
            ) {
                fallbackToExportServer(
                    'Image type not supported for this chart/browser.'
                );
                return;
            }

            chart.getSVGForLocalExport(
                options,
                chartOptions,
                fallbackToExportServer,
                svgSuccess
            );
        };

        // Extend the default options to use the local exporter logic
        merge(true, Highcharts.getOptions().exporting, {
            libURL: 'https://code.highcharts.com/7.1.2/lib/',

            // When offline-exporting is loaded, redefine the menu item definitions
            // related to download.
            menuItemDefinitions: {
                downloadPNG: {
                    textKey: 'downloadPNG',
                    onclick: function () {
                        this.exportChartLocal();
                    }
                },
                downloadJPEG: {
                    textKey: 'downloadJPEG',
                    onclick: function () {
                        this.exportChartLocal({
                            type: 'image/jpeg'
                        });
                    }
                },
                downloadSVG: {
                    textKey: 'downloadSVG',
                    onclick: function () {
                        this.exportChartLocal({
                            type: 'image/svg+xml'
                        });
                    }
                },
                downloadPDF: {
                    textKey: 'downloadPDF',
                    onclick: function () {
                        this.exportChartLocal({
                            type: 'application/pdf'
                        });
                    }
                }

            }
        });

    });
    _registerModule(_modules, 'masters/modules/offline-exporting.src.js', [], function () {


    });
}));
